Counting and recording apparatus



. July 25, 1950 R. R. s. wYLDE 2,516,443

COUNTING AND RECORDING APPARATUS Filed July 17, 1946 5 Sheets-Sheet 1July 25, 1950 R. R. s. WYLDE COUNTING AND RECORDING APPARATUS 5sheets-shew 2 Filed July 17, 1946 inurl/i301, egz'ald E. 3 Hidde,

@Hiboux A July 25, 1950 R. R. s. WYLDE 2,516,443

COUNTING AND RECORDING APPARATUS imma July 25, 1950 R. R. s. WYLDECOUNTING AND'RECORDING APPARATUS Filed July 1'?, 1946 5 Sheets-Sheet 4@egg- 2 jrwerwoo Reginald RJ?. Wylde when eg July 25, 1950 R. R. s.WYLDE 2,516,443

COUNTING AND RECORDING APPARATUS Patented July 25, 1950 UNITED STATESPATENT OFFICE ooUNTING yAND RECORDING APPARATUS itegnaia R. s. Wyide',Miami, Application July 11, 1946, serial No; 654,164

(c1. 34e-1i)v Claims.

l The invention relates to apparatus Vfor counting series of objects,and for purposes of disclosirre an Yembodiment thereof has beenillustrated in the accompanying drawings, and will` be hereinafterdescribed, which has beenwdesigned primarily for use in laundries andthelike for counting and making a printed record of the total of the piecesof laundry in a batch.I EIowevenv it will be readily apparent to thoseskilled in the art that the principles -involved in the apparatus are byno means limi-ted to such 'specific application, but may beadvantageously employed in the counting and registering or recording ofnumerous other ar'- ticles or objects.

One of the purposesof the invention is toproyidea relatively small andcompact machine, which may be readily moved from place to place toposition it in co-operative relation to chutes or the like adapted toreceive the articles after they have V'been counted and transfer them toother locations for further operations; or if desired the machine may beanchored atone location and discharge the counted articles, either ontoa belt or like conveyer passing beneath the discharge opening, V ordirectly into portable trucks, baskets or the like positioned beneathsuch opening.-

-A further object of the invention is to provide an apparatus of thecharacter described wherein the articles to be counted are seriallypassed be tween a source ofy light and a photoelectric cell orequivalent light-responsive device, which de# vice controls theactuating elements of the counting mechanism whereby the indicia-bearingmem-- bers of the latter will be advanced step by step witheaohinterruption of the light beam due to passage of the articlesbetween the light source and llight-responsive device. The counting'mechanism may be merely a visual indicator or register, but preferablyit comprises a 'recorder adapted to print the ttalnu'nber of articles ina batch upon a card or sheet presented to the recorder..

A still further object of the invention is to provide an articlecounting and recording apparatus wherein the recording mechanism ispro'- vided with a slide forreceiving a card or sheet upon which therecord is to be made, said slide being movable to and from aposition inwhich a portion of the card or sheet is juxtaposed toA theindicia-bearing members of the counter, and in whichv the movement ofthe slide to suchpo'sition serves to retract and release a printing.ham-'- mer, which thereby strikes the card and presses itv against thecounter indicia whereby an impressionof the latter is Atijarlsfierredtothe card. The return-.movement of the slide may be convenientlyemployed to clear the counter, i e.I return its indicia-bearing membersto their zero positions preparatory to the beginningof a new count; andthe recorder preferably includes a traveling inked ribbon passing.V,across the face of the indicia, against which the surface of the cardis pressed by the printing .hammer to( produce the impressionon thecard. The ribbon travels from one spool to another in step by stepmovements in` duced by the `means which advances the indicia bearinglmembers of the counter, and the direction of travel of the ribbon isautomatically reversed as each spool becomes empty, through an increasein tension on the ribbon.

Other more or less secondary objects will ap pear as the descriptionproceeds.

In thcaccompanying drawings forming a part ot this specification-:-

Figure l isy a side elevational view of amachine embodying theprinciplesof the invention, and designed primarily for the counting oftowels, linens and other pieces of laundry;

Fig. 2 is an end` elevational view of such machine, as seen from-thelright of Fig. 1;

Fig. 3' is an' 'enlarged' side elevational view of the counting andrecording mechanism, the parts being- Show'n in th'e positions theynormally occupy;

Fig. 4 is a View similar to Fig'. 3 but' looking from the oppositeside,A portions of the parts beinev broken away and' section Fig. 5 isan end elevational view of the mech anisin' shown Fig'. 3, as seen fromthe right thereof;

Vrig.. c i'sa# similar view, looking from the' left of Fie.I 3;

rjrg. *1 is a 'pian new', looking' down on Fig.

A Fig. cuis a 'fragmentaryview similar" to Fig. '3" but partly insection, and illustrating positions assumed by the parts in the course'of a printing Operation;

Fig. 8e is `a per-spedite vie of a portion of' the lever and tli'epivted dog" carried thereby, which atuatethe printing' hafn isv a planView', partly brokenv away and in section, of tne counter unit per seFig". 1Q' is a longitudinal sectional view on appiirimately theplaeindicated by the line l0 l0 or 9, looking in the direction ofthearrows; an i Figs. 11,121, 13 and 1'4 are orosssectionai views on therespective planes indicated by the several 3 lines Il--l I, |2-I2,l3--I3 and lll- I4 of Fig. 10, looking in the directions of the arrows.

Referring first more particularly to Figs. 1 and 2, the machinecomprises an open framework 2l, conveniently formed of metal tubing, andthe four legs of which are provided at their lower ends with rollers orcasters 22 on which the machine may be easily rolled over the floor. Oneof the legs is preferably., provided with. abrake. o,r ystop devicecomprising ,a vertically slidable member 23 operable by'amcainmed lever2'4 to engage and disengage its foot with the floor surface, wheres,

by the machine may be anchored against movement at any desired location.p g g, ,n As will be readily understood fromthe drawf1.5. ings, thelower portions of the frame legs are so spaced as to accommodate atransporting device such as a belt conveyer, or as here shown, a

`journalled on the spindle 55, adjacent the gear laundry truck orreceptacle 25, disposed between them to receive the counted articles; orthe machine may be positioned 'over a v chute-or other opening in theiioor,through'whichI the articles may pass to other stations. "The upperportions ofthe frame legs'converge and vsupport the 'throat portion 26of a flared chute or hopper y2l into the open upper portion -28 of whichthe larticles are serially' introduced in any appropriatel manner.

A housing 29 mounted atene side of the throat 65, and carries a pair ofstuds i2 and 13 respectively journalling gears 'i4 and l5. This rockarm. also mounts the ribbon idler rolls 53 and 5B previously referredto, as will be clear from Fig. 5. The rock armll and the gears 56, M andl5 are l so constructed and arranged that the gears 'M and 'l5 are 'inconstant meshwith the gear S6, and by arcuate movement of the rock armin one direction `or the-'other the said gears 'M and l5 may bealternatively broughtinto meshing engagement 26 'encloses anvelectriclamp or otherV suitable v source of light 3i), while at the oppositeside'of the throat a housing 3! encloses a photoelectric cell-orequivalent light-responsive device 32. 4The circuits of the lightsoureeand the light-responsive device vare vpurely conventional kand sohave not been illustrated in detail, `but the wires thereof are enclosedin vsuitableconduit'sy 33, one portion of which extends to the countingand recording mechanismdwhich is mounted on., a bracket carried by the'frame- 2L As will appear more fully below, certain portions of thismechanism are actuated by an electromagnetor solenoid 36, which is incircuit with and controlled bythe light-responsive .device 32; -v

The details of the counting and recording mechanism 3A are betterillustrated in Figs.V 3F14, to which reference' is now made; Ashereshownthis mechanism comprises an. upright: plate-,like standard 3,1, having,a .rigid-base. plate 13B by meansof whichit maybemounted onthe bracket35, and a horizontal head plate 39 upon whichjis secured the counterunit All.Y The detailsv of this unit will be more fully described later,but further present it may be saidthatit comprises an open toppedrectangular casing 4l in which ijs journalled a longitudinally ,disposedshaft. 42.,.0n which is rotatably mounted a plurality oadjacentcountingwheelsB having raised numerical indicia 44 (see particularlyFigs. 9-14). rIhese wheels are arranged to kbe sequentially advanced,ste'p-vby-step, byA an Voperating lever 45 which is connected by alinkllt to thearmature or plunger.

41 of the solenoid l36. l

As best shown in Fig. 5, an'inked ribbon 5l! has one of its endsattached to the hub 5i of Ia'spool 52,"frorn` which it extendsdownwardly to an idler roll 53, thence'upwardly to [anI idler roll '54,then horizontally over theopen top offthe counter '40, inyjuxtaposition'to 'the faces' ofthe uppermost indicia of the `severalwheeljsd3`, toV an idlerroll 55*thence downwardly to; ani-idler roll 5Band nally upwardly to aV spool 5l, to the hub 58 yof which theother endof the ribbon is attached. The respective spools 52 and 57 are removablymounted on the studs 59 and'l carried byv the standard 3l, andhave-readily detachable driving' wthspooldriving gears' 53 andlliPrespectively.

VThe mechanism just' described constitutes an automatic ribbon feed andreversing device, the operation of which is as follows: -As theoperating arm |25 is oscillated by the solenoid 46, its motionwillbe-transmitted through the linkage l0, ratchet arm 68, pawl 69,ratchetwheel 61, spindle 65 4and gear 66 to the gears 'M and 15; Thesewill thus be advanced in step by step movements which willbe transmittedto which ever spool gear 33 or 54 happens to be engaged with such gearsM or 'i5 at the time, thereby rotating' the spool' associated with theengaged gear 63 or' 63, and winding-'the ribbon thereon from the lotherspool, the gear 'of 'which is at that time disengaged. When thesemovements have com pletelyunwound the ribbon from the free spoolgsince`the ribbonV end-is attached to the hub of such spool, any additionalmovements will serve to increase the tension on the ribbon andbyfreasonof' the training of thelatter about the idlerf'roll'sEB and 55carried by rthe rock arm 1|, the latter Vwill be shifted on the spindleG5 to disengage the previously engaged pair of spool driving gears, andto re-engage the previously disengaged pair, thus' freeing the fullspool and transferring the drive to the empty one. I 4In IFig.the'rparts are' illustrated as having just completed'such a reversal,whereby the drive has' been transferred from the full spool y52 tothe'ern'pty'spool 5l. In the interests of clearness the arc of movementof the rock arm 'H has been somewhat exaggerated here, and in practiceit needbe onlysufcient to insure complete disengagement of the" teeth ofthe respective pairs ofgears 63--74 and Sli-l5. To retain the partsl ineach position of gear engagement, there is provided a spring presseddetentl housed in al barrel l1 carriedby'the standard 'il carried'lbythe 'standardVv 3T, the ypoint `of whichdetent is'v alternativelyengageable in notches 'la and 19 provided in `a sector formed as a partof the rock arm 19. Before yielding in the course of a reverse, thisdetent venables thev placing of sucient tension on the ribbon to causethe shift of the rock: arml to be effected with a snap action whichinsures the engagement of the new pair of spool driving gears, as'willbe readily understood. Securedto and extending from one side of thecounter casing 4 I- is ajpairof spaced bracket arms 8|' provided withsuitable guidew'ays 82 in-which a slide 83 is mounted for manuallyinduced reciprocating movements. l'Ih'e .slide is of appro'- asti 6,4491

5 ji'ite dimensions to receive and Support a card or sheet 8f4 (Figs. iand 8) on which Vthe indications of the counter 4U are to be printed,and at its iouter end the slide is provided with a grip or `^fingerpiece 85, while its inner portion is apertred to provide a 'window 86.The normal position of the slide is that illustrated in Figs. 3, 4 and'7, but when it is pushed inwardly (as indicated in Fig'. y8) the windowSE will be `brought to a position bo've the counter wheels 43 in whichanimy res's'in of the uppermost indicia of such wheels may vbe securedon the under surface of the card, through the said window.

Riidly attached to the slide 83, as by a bracket member 8l', is a rackbar 88 the teeth of which engage 'with those of a pinion 8B carried bythe shaft 42 of the counter 40, for a purpose to be liter described. Theend of the rack bar carries a;iie'iiiber 90 provided with a pin 9| whichWorks inan in'clinedslot 92 formed in the upper portion of a'verticall'y-disposed lever 93 which is pivotally mounted 'at 94 in ears B5 carriedby the standard 31. The lower end of the lever 93 is provided with anangular extension 9E, while the upper end of Said lever 'is providedwith an oppositely disposed angular-extension 91 to which a dog 98 ispivotally onnct'ed `as at 90, and the downward movement o'f which islimited by a pin |00 carried by said extension 91.

"Extending from the counter casing 4| in a direction opposite to that ofthe arms 8| is a 'se nd pairof bracket arms I0| which mount a hammerstructure |02. This structure comprises a Vpair of spaced arms |03 and|04 the outer 'ends of which are pivctally secured as at |05 to thebracket arms I0 I, while the inner ends of the said hammer arms areconnected by a bridge piece |95 the under face of which carries arubber,felt or like yieldable pad |91. The hami'nerarin |03 carries a stud orroller |08 projecting into the path of travel oi the dog 93; and atension spring |09 has one of its ends anchored to the fa'rrn |33 andits other end adjustably anchored to the angular extension 96 of thelever '33, whereby it serves to normally retain such lever, the hammer|02 and the 'slide 83 in the positions shown in Figs. 3 7.

The `operation of the printing mechanism just described is as follows:At the conclusion of a count, when it is desired to secure a printedrecord of 'the indication of the counter 40, a card or sheet 84 isplaced in the slide 83 and the latter is manually pushed toward theleft, as viewed in `Figs. and 7, to bring the window 85 of the slideinto register with the counter wheels 43. Such movement of the slidewill be transmitted through the bracket 8'1, rack bar 88, connectingmember 00,- and pin and slot connection 9|, 02 to the lever 93, "whichWill thus be swung to the left, as indicated in Fig. 8, against thetension of spring |09. Subh movement of the lever 93 will cause the dog38 'to engage the roller |53 and lift the hammer |02, 'also against theaction of spring |09. As the window `|36 of slide 83 reaches itsposition of registration 'with the counter wheels 43, the lever l93completes its movement-from the full line to the broken line positionshown in Fig. 8-thereby indi/'ing the dog 98 beyond the roller |08,whereupon the spring |00 snaps the hammer |02 back toits initialposition, causing the pad |07 to press the vunder surface of the card 84against the rib- 50 and it in turn against the faces of 'the -upperrnostindicia of Vthe `counter Wheels 43,'the`reby lt!"'ans'ferring 'animpression of such indicia to the card surface. If the operator nowreleases CTI:

6 the slide fsa,- the spring me 'will restore the lever 93, rack` A8'8and slide 831Go their normal positions, during which movements the dog98 will ride over the roller |08 until it clears the same and then dropback to its position in engagement with the pin |00. As this action isquite rapid, a stop pin IIB is preferably provided on the hammer arm |03to prevent the dog from being thrown over to an .inoperative position.

The counting' device 40 may be of any appropriate type., but preferablytakes the form shown in detail in Figs. 9-14. As above indicated, theshaft 4-2 thereof extends longitudinally of the casing 4| and has theindicia-bearing wheels 43 journalled upon it. The units wheel-the onef-urtherest to 'the left in Figs. 9 and l0--has a ratchet wheel I-IIsecured to it which ratchet is arranged to be advanced step by step by apaw-l |I2 pivotally carried b'y a slidable block ||3 mounted vforreciprocatien in guides |4 carried by the bottom plate II 5 of thecounter casing 4|. As. best shown in Fig.- -13, the block |I3 is urgedto a retracted position by a compression spring H5, and the said blockalso carries an upright ringer IIT which, in said retracted position,engages the teeth of the ratchet wheel to prevent retrograde movement ofthe latter.

To advance vthe vratchet one step the block ||3 is moved toward theleft, as viewed in Fig, 13, by means of a pin |I-8 carried by anoscillatory arm `I I9 and engage'able with the said finger Il'l. The armI9 is rigid with a thimble |20 journalled in the end wall of casi-ng 4|land bored to receive and journal an end portion of the shaft 42, seeFig. 9. The thimble is provided with a stud |2| to which the operatingarm 45 is rigidly attached, and thus with each movement of such arm bythe solenoid 3e the block ||3 will be moved, against the pressure ofspring IIE, to the position shown in Fig. 14, and the ratchet wheel I||and units wheel 43 advanced one step. Upon de-energization `of thesolenoid the spring I |6 will return the parts to the Fig. 13 position,with the nger ||1 moving into engagement with the ratchet to preventbackward movement thereof.

To transmit motion thus imparted to the units wheel 43 to the succeedingcounter wheels to ad*- vance them from time to time as a preceding wheelcompletes a revolution, a gear transfer mechanism is provided. That isto say, each of the counter wheels 43, except the units wheel, has agear |22 vsecured to it in axially `spaced relation, with each of whichgears meshes a pinion |23 j'ou-rnalled on a longitudinal rod |24. Eachof the said pinions carries a shroud |25 Which is received in the grooveor space between its associated gear |22 and companion counter wheel 43,whereby longitudinal movement of the pinions on the rod |24 will beprevented. As will be clear from Fig. 9, each pinion |23 is wider thanthe gear |22 with which it meshes, so as to extend into the path of asmall patch gear I2@` carried by the preceding counter wheel 43. Theparts are so proportioned 'and arranged that each patch gear |26engages, moves, and disengages its mating pinion -in the course ofone-tenth of a revolution of the counter wheel carrying such patch gear,which eng-agement and movement take place as such counter wheel is beingadvanced from its "9 to its "0 indication. The pin-ion |23 of coursetransmits the movement to the gear |22 of the succeeding counter wheel,which is thus advanced one-tenth of a revolution. A comb spring |21 issecured to aside wall of the casing 75 4| and its Vteeth |28 yieldablyengage the 'teeth of the Vseveral gears |22 to prevent unintentionalmovements of the said gears and their associated counter wheels 43. Thesaid spring replaces the usual Geneva lock, and secures and maintainsexact alinement of the counter wheel indicia.

For clearing the counter, i. e. resetting its several wheels 43 to theirzero positions preparatory to starting a new count, the shaft 42 isprovided with a longitudinal notch |29 and the bore of each wheel isprovided with a recess Ilml (Fig. 12) in which is seatedV a V-shapedspring pawl |3| the inner leg of which will enter the notch when thelatter is alined with the recess. The shaft 42 is normally stationaryand the wheels 43 journal thereon in their advancing movements, whichtake place in a clockwise direction as viewed in Fig. l2; and as each.wheel advances the inner leg of its spring p-awl lill will be forcedoutwardly into the recess i3@ by the shaft periphery.

When the slide B3 is advanced from its normal position, as in Fig. 8,its movement will be transmitted through the rack 88 and pinion 89 tothe shaft 42, which will thus be moved in a counterclockwise direction,as viewed in Fig. 12. However, when the slide is released and returnedto its normal position by the spring |09, the direction of rotation ofthe shaft 42 will be reversed, and as its notch |29 alines with therecesses |33 of the respective wheels 43, the inner legs of the pawlsI3! thereof will enter the notch and the wheels will thus be picked upand rotated with the shaft back to their zero positions.

-' vIt will be readily understood from' the foregoing that with theserial feeding of objects, such for example as pieces of laundry, intothe chute 2'| they will pass downwardly through the throat 26 to thereceptacle, conveyer or chute beneath the latter. As each piece passesbetween the light source 3G and the light-responsive device 32 thelatter will cause an energization of the solenoid 36 which will advancethe counter one step. When all of the objects have been thus passedthrough the machine, a card or sheet 84 is placed in the slide 83 andthe latter pushed in and then released. The inward movement of the slidewill c ause actuation of the printing hammer |02 whereby a printedrecord of the counter indication will be made on the card or sheet; andthe lreturn movement of the slide will clear or reset the counter forthe beginning of a new count vat zero. In the meantime, with eachactuation of the solenoid the inked printing ribbon 5t will be slightlyadvanced, and when it reaches the limit of its travel, its direction ofmotion will be auto- .matically reversed.

What is claimed is:

l. In apparatus for counting and recording the total of a series ofobjects, the combination of a light source; a light-responsive controldevice spaced therefrom; means for conducting the objects between saidsource and device to intermittently actuate the latter; countermechanism having indicia-carrying wheels; means controlled by saidlight-responsive device for advancing the counter wheels step-by-step inresponse to the intermittent actuations of said device; a manuallymovable card-receiving member mounted adjacent the counter wheels forreceiving and carrying individual record cards to and from a printingposition relative to the wheels; a printing member mounted for movementtoward and from the `wheel indicia; and motion transmitting connectionsbetween said card-receiving and printing members whereby movements ofthe former will .actuate the latter to press a card advanced to theprinting position against the'whveel indicia and light source; alight-responsive device spaced.

therefrom; means for conducting the objects ben-v tween said source anddevice to produce intermitf,

tent actuation of the latter; counter mechanism` having indicia-carryingwheels; means controlled by said light-responsive device for advancingvthe counter wheels step-by-step in response to the Aintermittentactuations of said device; l,a card-receiving member mounted formovement adjacent the counter wheels whereby to carry individual recordcards to and from a printing posi:V tion relative to said wheels, saidmember being manually movable to said position; a printing membermounted for movement toward and from; the wheel indicia; motiontransmitting elements connected to and movable by the card-receiving,member, and having portions transiently engage-l able with the printingmember to retract it from the counter wheels as the card-receivingmember is manually moved to advance a card to said printing position;and spring means connected to said printing member and motiontransmitting connections, for returning the printing member. toward saidwheels upon release of said transient-, ly engageable portions to pressthe advanced card against the wheel indicia to record an impressionthereof upon the card, said spring means also moving said card-carryingmember and card from said printing position upon discontinuance of themanual pressure upon said memben 3. In apparatus for counting andrecording the total of a series of objects, the combination of ga lightsource; a lightsresponsive control ydevice spaced therefrom; means forconducting the objects between said source `and device to produceintermittent actuation of the latter; counter mechanism havingindicia-carrying wheels; means controlled by said light-responsivedevice for advancing the counter wheels step-by-step in response to theintermittent actuations or" said device; a manually operablecard-receiving member mounted adjacent the counter wheels for movementsto advance individual record cards deposited on the member to a printingposition relative to said wheels, and to retract the cards from saidposition; a printing member mounted for movement toward and from thewheel indicia.;` a lever connected to and swingable by the cardreceivingmember; a dog carried by said lever and transiently engageable with theprinting member during movement of the card-receiving member toward itssaid printing position, whereby toretract the printing membel` from thecounter wheels and then release it; and a spring connected to said lever.and printing member for returning the latter toward the counter wheelsto press the advanced card against their indicia to record an impessionthereof upon the card, said spring also acting upon the lever to returnthe card*- carrying member and card from said printing po,- sition uponrelease of the manual pressure on said member. A

4. In apparatus for counting and recording the total of a series ofobjects, the combination of `a light source; a light-responsive control`device spaced therefrom; means for conducting the ob+ jects betweensaid source and device `to produce intermittent actuation of the latter;counter mechanism having indicia-carrying wheels.; means controlled bysaid light-responsive device kfor advancing the counter Wheelsstep-by-stepy in response to the intermittent actuations of said device;a manually operable card-receiving member slidably mounted adjacent thecounter wheels for reciprocating movements whereby to advance andretract individual record cards deposited on said member to and from aprinting position relative to the wheels; a printing member pivotallymounted for swinging movements toward and from the wheel indicia; alever connected to and swingable by the card-receiving member; a dogcarried by said lever and transiently engageable with the printingmember during movement of the card-receiving member toward said printingposition, whereby to withdraw the printing member from the counter wheelindicia, and then release it; and a spring having one end connected tosaid lever and its other end connected to the printing member, forreturning the latter toward the counter` wheels to press the advancedcard against their indicia to record an impression thereof upon thecard, said spring also acting upon the lever to return thecard-receiving member and card from said printing position upon releaseof the manual pressure on said member.

5. In apparatus for counting and recording the total of a series ofobjects passing between a source of light and a light-responsive controldevice spaced therefrom, the combination of a counter mechanism havingindicia-carrying wheels; means controlled by the light-responsive devicefor advancing the counter wheels step-bystep in accordance with theintermittent :actuations of said device; a manually operable slidemember reciprocatably mounted adjacent the record card to a printingposition relative to the D Number 10 Wheels, and retracting ittherefrom; a printing member mounted for movements toward and from thewheel indicia; a spring connected to and biasing the printing membertoward the wheels; motion transmitting connections between said slideand printing member, including a rack and transiently engagea-bleelements ie latter of which being operable fas the slide advances a cardto the printing position to retract the printing member from the wheelsand then to release it whereby the spring may return said member towardthe wheels to press the advanced card against the wheel indicia torecord an impression thereof upon the card; and mechanism including apinion engaging said rack and operable thereby as the slide retracts theprinted card to restore the counter Wheels to their zero positions.

REGINALD R. S. WZLDE.

yfile of this patent:

UNITED STATES PATENTS Name Date Weiss June 30, 1885 Zipper July 31,1917Ccckrell et al Mar. 26, 1935 McMaster July i3, 1937 Willers Nov. 29,1938 Berck June 18, 1940 London Jan. 6, 1942 Branham 1 July 14, 1942Cooper Aug. 25, 1942 Gieseke May 24, 1949

